CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid In Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance (in shares) at Dec. 31, 2018			47,248					1,232
Beginning Balance at Dec. 31, 2018	$ 2,539,978	$ (1,321)	$ 47,248	$ 574,761	$ 2,427,599	$ (1,321)	$ (341,085)	$ (168,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	40,897				40,897
Cash dividends	(15,650)				(15,650)
Other comprehensive income (loss)	396						396
Shares issued under compensation plans (in shares)			75					40
Shares issued under compensation plans	5,198		$ 75	3,094				$ 2,029
Deferred compensation (in shares)								(4)
Deferred compensation	380			127				$ 253
Ending Balance (in shares) at Mar. 31, 2019			47,323					1,188
Ending Balance at Mar. 31, 2019	2,569,878		$ 47,323	577,982	2,451,525		(340,689)	$ (166,263)
Beginning Balance (in shares) at Dec. 31, 2018			47,248					1,232
Beginning Balance at Dec. 31, 2018	2,539,978	(1,321)	$ 47,248	574,761	2,427,599	(1,321)	(341,085)	$ (168,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	353,201
Other comprehensive income (loss)	(23,416)
Ending Balance (in shares) at Sep. 29, 2019			47,463					1,184
Ending Balance at Sep. 29, 2019	2,852,976		$ 47,463	603,634	2,732,408		(364,501)	$ (166,028)
Beginning Balance (in shares) at Mar. 31, 2019			47,323					1,188
Beginning Balance at Mar. 31, 2019	2,569,878		$ 47,323	577,982	2,451,525		(340,689)	$ (166,263)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	83,375				83,375
Cash dividends	(15,697)				(15,697)
Other comprehensive income (loss)	14,782						14,782
Shares issued under compensation plans (in shares)			77					2
Shares issued under compensation plans	12,506		$ 77	12,252				$ 177
Ending Balance (in shares) at Jun. 30, 2019			47,400					1,186
Ending Balance at Jun. 30, 2019	2,664,844		$ 47,400	590,234	2,519,203		(325,907)	$ (166,086)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	228,929				228,929
Cash dividends	(15,724)				(15,724)
Other comprehensive income (loss)	(38,594)						(38,594)
Shares issued under compensation plans (in shares)			63					2
Shares issued under compensation plans	13,521		$ 63	13,400				$ 58
Ending Balance (in shares) at Sep. 29, 2019			47,463					1,184
Ending Balance at Sep. 29, 2019	2,852,976		$ 47,463	603,634	2,732,408		(364,501)	$ (166,028)
Beginning Balance (in shares) at Dec. 31, 2019			47,536					1,182
Beginning Balance at Dec. 31, 2019	2,979,320	(791)	$ 47,536	616,980	2,824,916	(791)	(344,392)	$ (165,720)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	131,150				131,150
Cash dividends	(15,767)				(15,767)
Other comprehensive income (loss)	(20,327)						(20,327)
Shares issued under compensation plans (in shares)			24					37
Shares issued under compensation plans	(1,302)		$ 24	(3,074)				$ 1,748
Deferred compensation (in shares)								(5)
Deferred compensation	741			383				$ 358
Ending Balance (in shares) at Mar. 29, 2020			47,560					1,140
Ending Balance at Mar. 29, 2020	3,073,024		$ 47,560	614,289	2,939,508		(364,719)	$ (163,614)
Beginning Balance (in shares) at Dec. 31, 2019			47,536					1,182
Beginning Balance at Dec. 31, 2019	2,979,320	$ (791)	$ 47,536	616,980	2,824,916	$ (791)	(344,392)	$ (165,720)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	259,193
Other comprehensive income (loss)	20,700
Ending Balance (in shares) at Sep. 27, 2020			47,697					1,135
Ending Balance at Sep. 27, 2020	3,236,203		$ 47,697	639,248	3,035,934		(323,692)	$ (162,984)
Beginning Balance (in shares) at Mar. 29, 2020			47,560					1,140
Beginning Balance at Mar. 29, 2020	3,073,024		$ 47,560	614,289	2,939,508		(364,719)	$ (163,614)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,456				11,456
Cash dividends	(15,791)				(15,791)
Other comprehensive income (loss)	17,904						17,904
Shares issued under compensation plans (in shares)			35					3
Shares issued under compensation plans	10,726		$ 35	10,516				$ 175
Deferred compensation (in shares)								(1)
Deferred compensation	83			0				$ 83
Ending Balance (in shares) at Jun. 28, 2020			47,595					1,136
Ending Balance at Jun. 28, 2020	3,097,402		$ 47,595	624,805	2,935,173		(346,815)	$ (163,356)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	116,587				116,587
Cash dividends	(15,826)				(15,826)
Other comprehensive income (loss)	23,123						23,123
Shares issued under compensation plans (in shares)			102					1
Shares issued under compensation plans	14,786		$ 102	14,671				$ 13
Deferred compensation	131			(228)				$ 359
Ending Balance (in shares) at Sep. 27, 2020			47,697					1,135
Ending Balance at Sep. 27, 2020	$ 3,236,203		$ 47,697	$ 639,248	$ 3,035,934		$ (323,692)	$ (162,984)